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Physical characteristics of a Klinefelter syndrome can be tall stature, low body hair, and occasionally an enlargement of the breast. Usually, a small testicle volume of 1–5 ml per testicle (standard values: 12–30 ml) occurs. [32]
In Edinburgh, Scotland, eight 47,XYY boys born 1967–1972 and identified in a newborn screening programme had an average height of 188.1 cm (6 ft 2 in) at age 18—their fathers' average height was 174.1 cm (5 ft 8 + 1 ⁄ 2 in), their mothers' average height was 162.8 cm (5 ft 4 + 1 ⁄ 8 in).
In human body measurement, these three sizes are the circumferences of the bust, waist and hips; usually rendered as xx–yy–zz in inches, or centimeters. The three sizes are used mostly in fashion , and almost exclusively in reference to women, [ 1 ] who, compared to men, are more likely to have a narrow waist relative to their hips.
48,XXYY syndrome is a condition related to the X and Y chromosomes (the sex chromosomes). People normally have 46 chromosomes in each cell.Two of the 46 chromosomes, known as X and Y, are called sex chromosomes because they help determine whether a person will develop male or female sex characteristics.
External indicators include decreased body weight, gynecomastia, and small testes. [2] A standard karyotype can be completed to cytogenetically determine that an individual with a partial or complete male phenotype has an XX genotype. [15] [32] [5] The presence and location of the SRY gene can by determined using fluorescence in situ ...
Like Klinefelter syndrome, the presence of additional X chromosomes affects the male reproductive system, can cause physical abnormalities, and can affect cognitive development. When comparing 47,XXY and 48,XXXY, there is a greater risk for congenital malformations and more medical problems in those with 48,XXXY. [3]
From February 2011 to December 2012, if you bought shares in companies when Rodger A. Lawson joined the board, and sold them when he left, you would have a 29.2 percent return on your investment, compared to a 7.7 percent return from the S&P 500.
Little is known about its presentation, but associated characteristics include intellectual disability, anomalies of the external genitalia, and characteristic physical and facial features. It is not caused by characteristics of the parents, but rather occurs via nondisjunction , a random event in gamete development.